نتایج جستجو برای: geometric mean diameter

تعداد نتایج: 760491  

Journal: :environmental resources research 2013
hamid reza asgari

the rehabilitation of sandy desertified land in various dryland ecosystems by different management practices has a great potential to increase aggregate stability and improve soil quality. however, plants in general may have a different ability to sustain soil. the objective was to determine the effects of reclamation practices including haloxylon ammodendron and atriplex canescens plantation o...

Journal: :آب و خاک 0
فاطمه مسکینی ویشکائی محمود شعبانپور شهرستانی ناصر دوات گر

abstract the saturated hydraulic conductivity (ks) is an important physical property of soil. the direct measurement of this property in soils is a difficult and time consuming process. pedotransfer functions (ptfs) provide an alternative by estimating soil parameters from more readily available soil data. the objective of this study is to determine effective factors on soil hydraulic conductiv...

The rehabilitation of sandy desertified land in various dryland ecosystems by different management practices has a great potential to increase aggregate stability and improve soil quality. However, plants in general may have a different ability to sustain soil. The objective was to determine the effects of reclamation practices including Haloxylon ammodendron and Atriplex canescens plantation o...

Journal: :journal of agricultural science and technology 2010
m. danesh h. a. bahrami s. k. alavipanah a. a. noroozi

the geometric mean particle diameter (dg) and lime are two of the most important properties from the viewpoint of soil management. nowadays remote sensing technology which has emerged walking with science development throughout the world, has made soil study faster, more facile and more cost-efficient. an investigation of soil dg and lime was performed in pol-e-dokhtar area by use of four sets ...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
m tavakoli 1- cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr, karaj, iran h naghdi badi 1- cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr, karaj, iran h rafiee department of horticulture, science and research branch, islamic azad university, tehran, iran mr labbafi 1- cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr, karaj, iran m ghorbani nohooji 1- cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr, karaj, iran e zand weed research department, iranian plant protection research institute, tehran, iran

background: the seeds of some medicinal plants and their compounds have long been valued for their numerous health benefits. objective:to investigate some physical and chemical properties of salvia spp. methods: some physico-chemical properties in five species of salvia seeds (consisted of s. officinalis l., s. macrosiphon l., s. hypoleuca l., s. sclarea l. and s. nemorosa l.) were measured at ...

A Mehrafarin, MR Labbafi, E Zand , H Naghdi Badi , H Rafiee , M Ghorbani Nohooji , M Tavakoli ,

Background: The seeds of some medicinal plants and their compounds have long been valued for their numerous health benefits. Objective:To investigate some physical and chemical properties of Salvia spp. Methods: Some physico-chemical properties in five species of Salvia seeds (consisted of S. officinalis L., S. macrosiphon L., S. hypoleuca L., S. sclarea L. and S. nemorosa L.) were measured ...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
h. safiyari a. zomorodian h. rahmanian f. salmanizade

physical properties are often required for designing post harvest handling and processing equipment for agricultural products. persimmon (khormandy cultivar) is rich in vitamin a, calcium, potassium, tannic acid and antioxidant phenolic compounds. in this study changes in the physical properties of persimmon fruit during storage were studied. properties such as fruit dimensions, mass, geometric...

Journal: :تحقیقات آب و خاک ایران 0
مجید دانش حسینعلی بهرامی سیدکاظم علوی پناه علی اکبر نوروزی

homogeneity and uniformity of soil particles is a most potent factor which affects soil spectral signatures. geometric standard deviation of soil particles (?g) exhibits the homogeneity of soil components. this study presents the influence of ?g on spectral studying of soil geometric mean particle diameter as well as lime. the study was conducted in pol-e-dokhtar using the data set of lissiii-p...

Journal: :ماشین های کشاورزی 0
مازیار فیض اله زاده علی محمد نیکبخت اسعد مدرس مطلق

safflower is a strategic plant regarding to its valuable nutrition value (45% extractable oil) and industrial uses. due to massive import of edible oil to the country as well as high potential for safflower cultivation, the research on production of safflower for oil extrusion purpose is of remarkable importance. the design of various processing and oil extraction units and also their optimizat...

2011
Jung-Yeul Yun Hye-Moon Lee Si-Young Choi SangSun Yang Dong-Won Lee Young-Jin Kim Byoung-Kee Kim

Fe-Cr-Al alloy nanopowders were successfully prepared by electrical wire explosion method in ethyl alcohol media. The formation of FeCr-Al alloy nanopowder was monitored by X-ray diffraction. The alloy powders have spherical shape and nanometer size. The alloy powders prepared by the electrical wire explosion method have main crystal structures of bcc Fe-Cr alloy. The geometric mean diameter an...

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